Chapter 2 - Kinematics

 

A car moves along a straight level road with a uniform velocity of 2ms-1. What is the acceleration of the car? Why?

 

Answer:

Acceleration of the car is 0m/s2. 

 

Acceleration is (v2-v1)/t. For a car with uniform velocity, v2 - v1 = 0 m/s. Therefore, acceleration = 0

 

Notes!

The key word in this question is uniform velocity. This means that the car is moving with constant speed.